Some bits are artful, others very mechanical and robotic, and some are just plain creepy.

In one section, a motion-sensitive CCTV camera tracks humans by drawing colored trails coming off the backs of their heads. Lines of red and yellow snake about the screen, as janitors push mops and businessmen rush past.

But Arnall thinks “the visual expressions of machine vision” can be beautiful. “Something about the crackly, jittery but yet often organic, insect-like or human quality of a robot’s interpretation of the world. It often looks unstable and unsure, and occasionally mechanically certain and accurate.”